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l. A. OLIPPINGER AND SAMUEL S. PRATT, 01u NEWTON, IOWA.

Letters Patent No. 99,636, dated February 8, 1870; antedated January 28, 1870.

:Ms-Roveto BED-Bowen The Schedule referred to in these Lettera Patent sind` making part of the same.

To all whom tt may concern:

Beit known that we, I. A. CLIPPLNGER and SAMUEL -8. PRATT, of Newton, in the county of Jasper, and State ot' Iowa, have invented certain new and useful Improve ments in Spring-Bed Bottoms; and we do hereby declare that the following is a f'nll, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this speciication, and to the letters of reference marked thereon, like letters indicating like parts, wherever they occur.

To enable others skilled inthe art to construct and use our invention, 'we will proceed to describe it.

Our invention relates to spring-bedrbottoms, and consists in constructingthe flame ot'a bed-bottom, with its en ds formedin thev shape of a dovetail, t Ititeasily into corresponding grooves or mortices in theinner corners of a bedstead-fiame, and insuch a manner that l itfmay beinserted and removed at pleasure, and when inserted, will not only lock itself to the bedsteadframe, but will aid i locking the partsot' the bedsteadframe together; and, also, in combining with a bedbottom frame, thus constructed,aJ series of slats, suspended from spiral springs, as hereinafter described.

In the drawings- Figure 1 is a longitudinal vertical section on the line x-x of fig. 2; and

Figure 2 is a top plan view, with a portion broken' away. i p

We construct the frame A of our bed-bottom with two side and two end pieces. The latter are made square on all sides, except their ends, which are out in the form oi'a dovetail, as clearly shown in iig. 2.

The innei'sides of the posts of the'bedstead-frame, not shown, are provided with dovetailed mortises, so that the bed-bottom can be readily dropped into or removed from its scat, when desired.

The ends of the ti'ame A we provide with a series of holes, B, having shoulders a, at their lower ends,

and in these holes `place spiral springs b, which rest upon the shoulders a.

In the centre of these spiral springs we insert short rods c, provided at their upper ends with a broad head, to prevent them from slipping through the springs, and connect their lower ends to slats G.

Each slat is connected at each end to a bolt, and

the whole are connected with each other and to the sides D of the frame with any suitable elastics E.

Over the holes inthe ends'of the frame A, we place top pieces F; to keep out all dirt or other foreign substances from the holes B.

The operation of our ,bed-bottom frame is apparent. As the slats O are suspended from the spiral springs by the rods C, and as each is suspended independent ofthe other, and yet connected together bythe elastic `cords E, it is evident that the whole will furnish an admirable spring bottom for bed-purposes. Being the shape of a dovetail, as herein shown and described,

in combination with the spiral springs 1) slats C, and

elastics E, when constructed and arranged as set forth.V

for the purpose of easy attachment to and removal i'om a bedstead-frame.

I. A. ULIPPINGER.' SAMUEL S. PRATT.

Witnesses: n

G. N. GHITTENDEN, JOHN OLIPBINGER. 

